<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title3</title>
</head>
<body>
<form action="/login" method="post" >
    <input type="text" name="username" placeholder="请选择文件">
    <input type="text" name="password" placeholder="请选择文件">
    <input type="submit" value="上传">
</form>
</body>
</html>